Lessons learnt from the use of compartmental models over the COVID-19 induced lockdown in France ↗ ↖ 1 January 2021 Romain Gauchon Nicolas Ponthus Catherine Pothier Christophe Rigotti Vitaly Volpert Stéphane Derrode Jean-Pierre Bertoglio Alexis Bienvenüe Pierre-Olivier Goffard Anne Eyraud-Loisel Simon Pageaud Jean Iwaz Stéphane Loisel Pascal Roy